amu mDO 6. Deepa borrowed R9000 from her neighbour. Out of which 3000 were borrowed at 12% and the remaining at 15% rate of interest per annum. What is the total interest after 3 years?
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Answer:
3780
Step-by-step explanation:
a) P= 3000, R= 12%, T= 3yrs
SI= PRT/100= 3000*12*3/100
=30*36= 1080
b)P= 6000,R=15%,T=3yrs
SI=PRT/100= 6000*15*3/100
=60*46=2700
Total interest = 1080+2700=3780
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